Another great reason to build Passive House: They are really quiet (video)

Passive House fans do go on about how comfortable they are and how much energy they are saving inside their thick wrapping of insulation, expensive triple glazed windows, heavy doors and airtight envelope, but there is another benefit of all this stuff in the walls, particularly for those who live in noisy cities: It's dead quiet inside. Floris Keverling Buisman of 475 High Performance Building Supply demonstrates at Jane Sanders' historic brownstone retrofit: